Christianity works while infidelity talks. She feeds the hungry, clothes the naked, visits and cheers the sick, and seeks the lost, while infidelity abuses her and babbles nonsense and profanity. 'By their fruits ye shall know them.'
It is one of the severest tests of friendship to tell your friend his faults. So to love a man that you cannot bear to see a stain upon him, and to speak painful truth through loving words, that is friendship.